Answer:
2520ft
Step-by-step explanation:
Calculation for what is the scale of the model?
Let x will be the span length
Hence,
x= 4200 feet long/20 inches long
x=210
Thus:
1 inch = 210 ft
1 ft = 2520
=2520ft
Therefore the scale of the model will be 2520ft
Which of the following statements about UK and UL is true?
14
13
12
11
10
G
L174)
K04.2)
2
7354 321
U12, 1)
12345
A. JK and UL are the same length. HELP ASAP
B. JK is 7 units long
c. JK is longer than JL.
D. UL is longer than JK
1
2
3
4.
5
6
7.
8
9
10
4
The volume of a sphere is 36 ft. What is the radius of the sphere? Use the formula V = ar to find your
3
answer.
The radius of the sphere is
feet.
Answer:
Radius of sphere = 3 feet
Step-by-step explanation:
The volume of sphere is 36 π ft³.
We need to find the radius of sphere.
The formula used is: [tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3[/tex]
Putting value of volume and finding radius
[tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3\\36\pi =\frac{4}{3}\pi r^3\\r^3=36 \pi \times \frac{3}{4\pi} \\r^3=9 \times 3\\r^3=27\\Taking\:cube\;root\:on \:both\:sides\\\sqrt[3]{r^3}=\sqrt[3]{27}\\r=3[/tex]
So, Radius of sphere = 3 feet
Pls help me on number 10 plsss I’ll give brainlest
Answer:
Step-by-step explanation:
0 10
1 21
2 32
3 43
i donno if thats what you wanted
Answer:
0 43 turns into 1 44
1 32 2 33
2 21 3 22
3 10 4 11
Step-by-step explanation:
Pls help I will give 10 points :((((
I will be reporting people who don’t know :)
Answer: D, 180 - 130
Ratios and unit rates are the same things. True or false?
Answer:
a unit means that we have one of something the unit rate means we have a rate for one or something we write the rate as a ratio with a denominator of 1
so false
Answer:A rate is a comparison of two different quantities with different units, one is generally time. Rates are always ratios, since they are comparing two different numbers as they compare two different quantities. Ratios are sometimes rates, but not always; we can compare different numbers without comparing measurements.
Step-by-step explanation:
Mom buys a rectangular rug with an area of 7 1/6 square meters. The length of the rug is 3 1/3 meters. What is the width of the rug?
Answer:
2 3/20 mStep-by-step explanation:
The area is the product of the length and width
The area = 7 1/6 m² = 43/6 m²The length = 3 1/3 m = 10/3 mWidth = ?
A = lww = A/lw = 43/6 ÷ 10/3 = 43/6 × 3/10 = 43/20 = 2 3/20 mThe width is 2 3/20 m
Use substitution to solve.
2x2 = 5 + y
4y = -20 + 8x2
Solve the first equation for y and substitute it into the second equation. The resulting equation is
Answer:
2 x 2 = 5 + y
4-5 =y
y= -1
4(-1)=-20 + 8 x 2
-4= 20+ 16
-4= 36
36+4=0
Ans) 40
Question 4 (1 point)
A ball is thrown from a mountain 960 feet high, into the air with an upward velocity of 64 ft/s. When did the ball hit the
ground? And What was the max height it reached?
Answer:
The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Step-by-step explanation:
Height of a mountain, h = 90 feet
Upward velocity of a ball, u = 64 ft/s
Its height as a function of time can be written by using the second equation of motion as follows :
[tex]f(x) = -16t^2 + 64t + 960[/tex] .....(1)
When it will hit the ground, f(x) = 0
[tex]-16t^2 + 64t + 960=0\\\\16(-t^2+4t+60)=0\\\\-t^2+4t+60=0[/tex]
It is quadratic equation.
t = -6 s and t = 10 s
Neglecting -6 seconds, the ball will hit the ground at 10 seconds.
For maximum height,
Put f'(x) = 0
[tex]-32t+64=0\\\\\\t=\dfrac{64}{32}\\\\t=2\ s[/tex]
Put t = 2 in equation (1)
[tex]f(2) = -16(2)^2 + 64(2) + 960\\\\=1024\ \text{feet}[/tex]
Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
It cost me $12 for 6 pounds of oranges.
How much is the cost per pound of oranges?
Answer:
$2 per pound.
Step-by-step explanation:
6th Grade Math! Can you please help?
Answer:it is c and d
Step-by-step explanation:
1. MULTIPLE CHOICE Suppose y varies directly as x.
If y = 5 when x = 8, find y when x : 64.
A 25
B 40
C 61
D 102.4
Answer:
B 40
Step-by-step explanation:
x=8(8)=64
y=5(8)=40
Consider the enlargement of the triangle.
A smaller triangle with side lengths 9 millimeters and 6 millimeters. A larger triangle with side lengths x millimeters and 16 millimeters.
Which statement is true about setting up a proportion to solve for the missing measure?
Corresponding parts must be in different positions.
Corresponding parts must be in the same position.
The two ratios are not equal.
The enlargement is not proportional to the original figure.
its B XDD
Answer:
corresponding parts must be in the same position
Step-by-step explanation:
you can't proportion something to something that can't use the ratio.
Answer:
b
Step-by-step explanation:
A photographic negative is 2 in. by 1.5 in. An
enlarged print from this negative has a length
of 9 in. as its shorter side. What is the length of
its longer side?
Answer:
The length of the longer side is 12 in
Step-by-step explanation:
Scaling
The dimensions of the photographic negative are 2 in by 1.5 in.
An enlarged print of it has a length of 9 in and it's equivalent to the shortest side.
Since the shortest side of the negative is 1.5 in, the scale factor is 9/1.5 = 6.
The longer side should have been enlarged by the same factor, thus the longer side is 2*6 = 12 in
The length of the longer side is 12 in
The area of a circular mouse pad is 64 square inches. Use 3.14 for 7. Estimate its radius to the nearest integer.
Answer:
about 4.52
Step-by-step explanation:
Since pi times radius squared is the formula for area, you would first divide 64 by 3.14 to get about 20.4. Then since you square the radius, you would do the opposite and find the square root which is about 4.52.
Which measurement is most accurate to describe the amount of time it would take to watch a television show?
No options are listed to your question. My best guess, depending on the typical length of TV shows, is the measurement of minutes!
Answer: Minutes can be used mostly in determining the duration for watching a TV show.
Step-by-step explanation:
WILL GIVE BRAINLIEST !!!
this table shows how many sophomores and juniors attended two school events. what is the probability that a randomly chosen person from this group is a junior? round your answer to two decimal places.
Probabilities are used to determine the chances of an event. Here, we want to calculate the chances of selecting a junior student. The probability of selecting a junior is 0.44.
From the table, we have:
[tex]Junior = 60[/tex]
[tex]Total = 137[/tex]
So, the probability of Junior is
[tex]P(Junior) = \frac{Junior}{Total}[/tex]
This gives:
[tex]P(Junior) = \frac{60}{137}[/tex]
[tex]P(Junior) = 0.437[/tex]
Approximate
[tex]P(Junior) = 0.44[/tex]
Hence, the probability of selecting a junior is 0.44
Read more about probabilities at:
https://brainly.com/question/13957582
Answer:
0.44
Step-by-step explanation:
May someone tell me if I’m correct cause I think I’m right but I need to double check with someone thanks
Answer: Proportional
Step-by-step explanation: Any table that starts with (0,0), it means it’s proportional!
13x+6-4x+8=
Simplify the following expression.
Answer:
13x+6-4x+8
= 9x+14
Step-by-step explanation:
I hope it helps....
I just guessed this...
lol
Answer:
9x+14
Step-by-step explanation:
Group like terms
=13x-4x+6+8
Add similar elements: 13x-4x=9x
=9x+6+8
Add the numbers: 6+8=14
=9x+14
write the equation of a quadratic function that contains the points (1,21), (2,18), and (-1,9)
Answer:
The equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
Step-by-step explanation:
A quadratic function is a second order polynomial of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.
[tex]y[/tex] - Dependent variable.
[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Coefficients.
From Algebra we understand that a second order polynomial is determined by knowing three distinct points. If we know that [tex](x_{1}, y_{1}) = (1, 21)[/tex], [tex](x_{2},y_{2}) = (2,18)[/tex] and [tex](x_{3}, y_{3}) = (-1, 9)[/tex], then we construct the following system of linear equations:
[tex]a+b+c = 21[/tex] (2)
[tex]4\cdot a + 2\cdot b + c = 18[/tex] (3)
[tex]a - b + c = 9[/tex] (4)
By algebraic means, the solution of the system is:
[tex]a = -3[/tex], [tex]b = 6[/tex], [tex]c = 18[/tex]
Therefore, the equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
The figure below is a scale drawing of an office courtyard using the scale 1 centimeter = 4 feet? ( Couldn't fit this in the picture, this is at the top above everything else for the first drawing shown.)
Which figure is a scale drawing of the same courtyard using the scale 1 centimeter = 3 feet?
Answer:
the answer is D
Step-by-step explanation:
they divided
Answer:
It's actually B.
Step-by-step explanation:
Divide the numbers on the scale drawing by 3. 75 divided by 3 equals 25, 51 divided by 3 equals 17, 30 divided by 3 equals 10, and 72 divided by 3 equals 24. Letter B has all of those answers.
Wie viele US-Dollar sind 30000 Euro?
Answer:
36,902.10 US-Dollar
Step-by-step explanation:
2p-3=10 would the answer be a whole number i’ve just been asked this help lol
The answer would be no it is not a whole number.
2p-3=10
+3. +3
2p=13
/2. /2
P= 13/2 or 6.5
Write an equation of the line that passes (-3,3) and is perpendicular to the line 2y=8x-6
Answer:
2y=8x-30 or -4x+y=-15
Step-by-step explanation:
Answer: y = (-1/4)x + 9/4
Step-by-step explanation:
2y = 8x - 6
So, y = 4x - 3 (Slope = 4)
Slope of perpendicular line = -1/4
Equation of line: y-3 = (-1/4)(x-(-3))
y-3 = (-1/4)x - 3/4
y = (-1/4)x + 9/4
3.
Write the
equation.
Slope:
riset
Run
y intercept:
equation: y=mx+b;
Answer: y = 1/4 x – 4
OR y = x/4 –4
m is the slope. b is the y-intercept.
Without numbers on the x and y axis, it may not be correct. But assuming a normal scale, the slope is positive 1/4 and the y-intercept is -4
Step-by-step explanation: To find the slope, m, determine "rise over run"
Look for places where the graphed line crosses the grid at intersections. There seems to be such places at (–4,–5), (0,–4) and (4,–3)
The "rise" is the difference in y-values. Here, they increase by 1.
The "run" is the difference in x-values. Here they increase by 4.
So the slope is 1/4. Put that in place of m.
The graphed line crosses the y-axis at –4
That is the y-intercept. Use -4 in the place of b
Keep the y and x; substitute the values for m and b we found.
y = 1/4 x – 4
OR
y = x/4 – 4 This makes it clear that x is not in the denominator of the fraction, 1/4, and in calculations with given coordinates, the value of x will be divided by 4.
Here is a list of numbers:
5.2, 8, 8.2, 6.4, 8.3, 3.4, 9.6 ,0.3,3,3,5.5
State the median
Answer:
5.5 is the answer
:)
Step-by-step explanation:
HCF of 50 and 90.find the answer plssss
Answer:
Step-by-step explanation:
The factors of 50 are 1,2,5,10,25,50;
The factors of 90 are 1,2,3,5,6,9,10,15,18,30,45,90.
So, as we can see, the Greatest Common Factor or Divisor is 10, because it is the greatest number that divides evenly into all of them.
2) There were 80 golfers in the first round of a tournament. Of the 80, 62.5% qualified for the next round. How many did not qualify?
Answer: 30 golfers
Step-by-step explanation: 62.5% of 80 is 50 golfers who qualified so 30 golfers as a result did not
what is the answer to this -3n -7 + (- 6n ) + 1
Answer:
-9n-6
Step-by-step explanation:
sm
Answer: Solution
3n+(-6n)-6
Step-by-step explanation:
7 2/3 + 8 2/5
Show how u got the answer
Answer: 16 1/15
23/3+42/5
115/15+126/15
241/15= 16 1/15
I hope this helps:
Answer:
16 1/15
Step-by-step explanation:
Add the whole numbers. 7+8=15
Now, combine the fractions 2/3 and 2/5. To do so, you need a common denominator. The LCD between 3 and 5 is 15.
Whatever you do to one side you must do to the other.
(5/5) 2/3+ 2/5 (3/3)
10/15+6/15=16/15
15+16/15
16/15 is an improper fraction, so convert this fraction to a mixed number.
16/15= 1 1/15
Finally, add the two together. 15+ 1 1/15=
16 1/15
Please help!!
I really need it
Will mark brainliest
